Mechanical shovel



I. M. CHARLES MECHANICAL SHOVEL May 11 ,1926. 1,583,870

Filed Jan. 18, 1926 3 Sheets-Sheeti- May 11 1926.

I. M. CHARLES MECHANICAL SHOVEL Filed Jan 18. 1926 S Sheets-Sheet 2 amnion $12302 7n.- fi'karled.

M. CHARLES MECHANI CAL SHOVEL Filed Jan. 18, 1926 a Sheets-Shet s grwentov Jam 7. am. I

- sive,

Patented May 11,1926.

Hair-see;

msrr mm. cmnnnssoneonnnn, Genoa-Ann c mncnanxcan SHOVEL.

Application filed January is, 1525; Serial meme-o;

This inventionrelat-es to improvements in mechanicalshovels of; the ty'pe in which the. digging, element" and the power; unit: are widely sepaiia-ted;

In the mining of coaland" other places where a lange amount-oi? material suchas (Zea-Lore or muck must be removed, the need of a mechanical apparatusfor loading-the same. onto thefminev cars for removalfhas been longfelt and many devices have beeninvent-ed for this. purpose,j most-'Qf which; however, areyery complicated) and? expen- It is the obj'ect'ottliis' invention toa pro-J duce a mechanical shoveling: device of sim-' ple construction that-:ca nbe attached: to the mine car. and" which can be operated from; a

Source ofpower lbcatedsome distance away from the shovel;

It is a further'j object of"this invention to produce a sho ve'ling device of such'light Weight that itcan' be handled two: men and which! can be readily i'emoved fi'onr or appli'ed in plaoeon; a mine car.

My invention can-behest described" and will be most readily"understoodwhen reference is hadto the accompanying drawings' in which the preferred embodiment has been illustrated and" in which: Y Fig; 1 is"- a; side"elevati'onaof my" device showihg theseveralpants-"assembled in operative. relation; I Fig. 2 i-' a-"sect-'-on*-t:akenon '1ine-22, Fig; i

Fig; 3" is; asection taken on liner 3+3 Fig:2 4 Fig, is" a sectiontaken 011 line;- H,

' Fig. 5* is" a: side elevation ofthe shoveling mechanism; showing; also how 'this is attaehedto the fi'ont wall 'ofithe car'; I

Fig. 6;" is a plan View 1 looking down upon the "shoveling mechanism iIIust-r at'ediin Fig. 8 V Fig. 1;

Fig. 9 is a ,SGCtlOIl to"an;-en''la'i'ged scale of a coal mineawliile 3* represents a; pile of? brokencoal that-is tobel'o'aded into' thepit can 4: which rests on'the rails 5- o-f themine track; Secured to theupper i edgeof the front: walPGoifithe pit car" is my improvedshoveling apparatus whose construction is vbest shown 'in'Figs; 5, 6 and 7 and which is constructed as follows: head-*fT-aaiie-consisti-n-g; of two parallel bars- T- and having downwardlyi'extendmg arms 8' 8* is se'-* cured to the fiontiwall of the pit car 6 by means 0%" the angular; bracket arms 9 and i 9* whose upper ends fa-re connected with the arms Siand-PS by ineansg'of rivets l -'02 The arms 8mm connect-edfiby means (ifmfiat-bar 1-1" whose ends-12* are attached to the arms by means of bolts on rivets 13 (Fig-.1 10):

The lower ends of the arms S ate -provided with clamping screws 14: (Fig:"5 which :serve tohold the" tame rigidly-Kin place:

Secured to-- the inside of *thewarmS-B and 8 arez lugs--15}which 'carry projecting pins: 16

thatserve a's pivots fonthe lower P end} of the bars lTancl ILWWhibh are, held from with drawal thenefroinb'ymeans of the washers 189 A guywiT-e -LW is secured, to the' other end of eaclno'f-ithebai s 7 and-7 have theii'--'other= ends anchoredta the opposite end o fi the car at the ipoint indicated by numeral 20." Secured tothe upper end of eaeh 'baa: 7 and 7 lis a pulley 2l -whose-i f unccti'on will hereinafter aiopear, whi1e= similar v pulleys- 22 are" seeured to the free Y ends of barsl'l' and 17 .Th'e" pulleys, 22 are-1 en:-

-c1osed within a guide frame=23il A chute having: 1 a: bottom 24 and sides 25 and 26 is slidably connect'ecl -to the bars l7 andiafl by 3 means of Zibars 27 u thatare secured t'owthe sides-25iz nd QG by-Emeans' ofirivet'sz28e The forward ends oi? the sides 25* ane somewhat tapered in the manner shown in'" F'igifiiand thebotto'm curved-upwardly! SGOLHBdIPtO the front" edgeof: th'e bottom' 24; is.- shoe ceive the ringor washe i. 18: when thegoon- 5 veyon is inythe; position showni in Figzif 5. '(Zables 32 pass y-oven 1 thempulleys 2-1 and are anchoredat 33 (-Fig: 5 near the-"front end of the" chute Other cables-34: pass betwe'en the pulleys 35g thencealongthe b'a rs:l 7 "and 17 to and 'about thepulleys; 22 and have tion of the arrow in Fig.5 that the chute will be raised and that if they are permitted to move in theopposite direction the chute will move downwardly towards the position shown in Fig. 1. When the roller 30 rests upon the fioor, then if cables 34 areinoved rearwardly, the chute will be moved forwardly in a manner quite evident when the arrangement shown in Fig. 5 'islconsidered.

Let us 110w assume a case in which the cables 34 are held against movement and in which the parts are in the position shown in Fig. 1. lf'sufiicient force is applied to the cables 32,the chute will be raised towards the position shown in Fig. 5 and will raise a considerable load of coal. it is evident from Fig. 1 that the tension in cables 32 can be resolved into two components one of which tends to lift the chute and the other of which tends to move it rearwardly, therefore, if the cables 34 are permitted to yield the chute will slide rearwardly as it a is raised until it finally reaches the position shown in Fig. '5 when the coal will slide into the car. I After the chute has deposited its load,.the cable 32 may be released slowly so as to allow the chute to move downwardly until the roller 80 rests upon the floor when force is applied to cables 34 for extending the chute to the position shown in Fig. 1. By repeating this cycle coal will be transferred from the pile 3 to the pit car.

Let us now describe the apparatus by means of which the shoveling apparatus is manipulatedf A frame comprising two spaced base members 37 that are held in parallel relation by means of uprights 39 supports an electric motor 40 or any other prime mover. A worm gear 41 is provided with an. axle 42 that is journalled in the bearings 43 which are secured to the underside of the beams 38. A worm 44'is faslever 49 is a. spring 52 to which is secured a pulley 53. A cable 54 has one end con nected with thecables 34 and after passing about the pulley 5.3 has its votherend an- Ichored to' one of the uprights 39 at 55.

Operatively associated with the lifting cam 48,isja lever 56 that is pivoted at and carriesa roller 58 that engages the outer periphery of the ca1n48 in the manner shown in Fig. 4. Connected to the lever 56. near its upper end is a pulley'59 about which the cables 82 pass. The ends of The worm gear 41 may be enclosed in a casing 46.

these cables are anchored at 60 to the up'-' rights 39. The cams 47 and 48 are related to each other in a certain way which will now be described. The-lifting cam 48 must be so constructed that if we begin with the parts as shown in Fig. 1, it will impart to the lever 56 a rearward motion that raises the chute to the position shown in Fig. 5. The chute should then be held stationary for a short time so as to permit the load to be emptied into the car; the lever 56 should now move forwardly until the front end of the chute rests'upon the floor and to give suflicient slack to permit the chute to be fully extended to the position shown in Fig. 1. Let us now consider the cam 47. When the parts are in the position shown in Fig. 1, the lever 49 occupies its rearmost po-- sition. As the chute isbeing lifted the lever- 49 ispermitted to move forwardly so as toallow the two parts of which the chute is V each cam can only be determined after the design of the machine has been fully estab lished. The-shapes of the cams as shown on the drawings are, however, substantially correct. i i

It will be noted that a spring 52 has been inserted between the lever 49 and the cable- 54. The purpose of this spring is to prevent the breakage in case the end of the chute strikes some obstruction.

; I desire to call particular attention to the fact that the digging or shoveling unit is separated from the power unit and that the two are connected by means'of the flexible cables only. This makes it possible to extend the distance between the shoveling unit and the power. unit to any desired extent by merely lengthening the cables.

l/Vhen the pit car is filled, the operator I removes the shoveling .mechanism and at taches it to the empty car that is substituted for the filled one. The cars are, of course, anchored to the track during the loading ,operation. This may be accomplished in any suitable manner.

Having now'described my invention, what I claim as new is:

1. A shoveling and loading device for loading material into a car, comprising, in combination, a head frame adapted to be secured to the sides of a car, a shovelingand elevating mechanism comprising two telescopically connected members, one of which has one end pivotally connected with the head frame, means for extending said members, and means for oscillating said members about the pivot.

2. A shoveling and loading device for loading material into a car, comprising, in combination, a head frame adapted to be secured to the sides of a car, a shoveling and elevating mechanism comprising two telescopcially connected members, one of which has one end pivotally connected with the head frame, means for extending said members, means for raising the free ends of said members and for simultaneously contracting them, means for lowering the free ends and means for extending said members.

3. A shoveling and loading device for loading material into a car, comprising, in combination, a head frame adapted to be secured to the sides of a car, said head frame having two upwardly and forwardly extending arms, a pulley secured to the free end of each arm, a two part shoveling and elevating mechanism pivotally connected with said head frame, the two parts of said mechanism being telescoplcally connected I with each other, means comprising a cam for extending said members. means comprising a second cam and cables that pass over the pulley of the head frame for raising 'saidshoveling members, means for permitting, the shoveling members to be collapsed as they are,

raised and means for lowering saidfshoveli ing members while collapsed.

, 4. A device for elevating material from a supporting surface and for transferring the same to a receptacle located at a higherlevel than the supporting surface, comprising, in

combinatioma two part telescoping shovelthe surface, means for raising the free end of said'device into a position higher than the pivot, means for permitting the parts of said device to be collapsed while they are being raised, and means for lowering said device until its free end rests upon the supporting surface.

In testimony whereof I laiiix my signature.

IESTYN. CHARLES. 

